CN106949707A - A kind of equipment of liquefied natural gas - Google Patents
A kind of equipment of liquefied natural gas Download PDFInfo
- Publication number
- CN106949707A CN106949707A CN201710161605.2A CN201710161605A CN106949707A CN 106949707 A CN106949707 A CN 106949707A CN 201710161605 A CN201710161605 A CN 201710161605A CN 106949707 A CN106949707 A CN 106949707A
- Authority
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- China
- Prior art keywords
- flexible pipe
- natural gas
- heat exchanger
- gas
- equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 239000003345 natural gas Substances 0.000 claims abstract description 27
- 239000003507 refrigerant Substances 0.000 claims description 26
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 239000002826 coolant Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 13
- 239000000203 mixture Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0022—Hydrocarbons, e.g. natural gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention discloses a kind of equipment of liquefied natural gas, including refrigerating circuit, natural gas input channel, heat exchanger and the first gas-liquid separator, the refrigerating circuit is connected by the first flexible pipe with the heat exchanger, the natural gas input channel is connected with the heat exchanger, and the heat exchanger is connected by the second flexible pipe with first gas-liquid separator；Clamping device is equipped with first flexible pipe and the second flexible pipe, each clamping device is connected to the jittering device for driving first flexible pipe and the shake of the second flexible pipe；First flexible pipe and the second flexible pipe are spiral expanding flexible pipe.The present invention can effectively prevent the attaching of cooling agent and mixed liquor in pipeline, it is to avoid the generation of pipe scale in pipeline.
Description
Technical field
The invention belongs to LNG preparation facilities technical fields, and in particular to a kind of equipment of liquefied natural gas.
Background technology
Liquefied natural gas (Liquefied Natural Gas, abbreviation LNG), main component is methane, and it is the earth to be recognized
On the most clean energy.Colourless, tasteless, nontoxic and non-corrosiveness, its volume is about the 1/625 of same amount gaseous natural gas volume,
The weight of liquefied natural gas is only 45% or so of consubstantiality ponding.Its manufacturing process is at the natural gas purification for first producing gas field
Reason, after being liquefied through a succession of ultralow temperature, is transported using LNG carrier.After liquefied natural gas burning to air pollution very
It is small, and liberated heat is big, so liquefied natural gas is a kind of more advanced energy.
In the prior art, the liquefaction to natural gas is mainly by natural gas and refrigerant after heat exchanger, due to natural
The critical-temperature of gas, becomes gas and liquid mixture, now, is separated by mixed liquor into gas-liquid separator.Firstly, since gas
When liquid mixed liquor is flowed through in the duct, part gas and liquid mixture can be attached in pipeline, form dirt, cause the tired of pipeline cleaning
The dirt of pipeline may can also be absorbed and be delivered to gas-liquid separator by difficulty, further, follow-up natural gas gas and liquid mixture,
Influence separating effect；Secondly, natural gas is after transformation cooling processing, and gas-liquid mixture can be also attached in pipeline；These are asked
Topic, the problems such as not only resulting in pipeline cleaning, it is crucial that, the purity of follow-up natural gas can be influenceed, especially into heat exchange
The purity of natural gas in device, and then influence liquefaction efficiency.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of equipment of liquefied natural gas, its object is to be prevented effectively from day
The presence of pipe scale, facilitates cleaning, improves the efficiency and product purity of liquefied natural gas during right gas liquefaction.
To reach above-mentioned purpose, technical scheme is as follows：
A kind of equipment of liquefied natural gas, including refrigerating circuit, natural gas input channel, heat exchanger and the first gas-liquid separation
Device, the refrigerating circuit is connected by the first flexible pipe with the heat exchanger, and the natural gas input channel connects with the heat exchanger
Connect, the heat exchanger is connected by the second flexible pipe with first gas-liquid separator；
Clamping device is equipped with first flexible pipe and the second flexible pipe, each clamping device is connected to drive
The jittering device of first flexible pipe and the second flexible pipe shake；
First flexible pipe and the second flexible pipe are spiral expanding flexible pipe.
In a preferred embodiment of the invention, the clamping device includes an open annular dead ring, described
Two end points of dead ring intersect extension at cross-point and form clamp, the external diameter of first flexible pipe and the external diameter of the second flexible pipe
It is all higher than the internal diameter of the dead ring.
In a preferred embodiment of the invention, two end point bent upwards of the clamp form the end of circle.
In a preferred embodiment of the invention, the jittering device is crank mechanism, and the crank mechanism includes connecting
Bar and cam, the cam are provided with the connecting hole for being used for installing the connecting rod, and the clamping device is connected with the connecting rod, institute
State cam and be connected with the electric rotating machine for driving cam rotation.
In a preferred embodiment of the invention, deacidifying device and dehydration are also associated with the natural gas input channel
Device.
In a preferred embodiment of the invention, the exhaust outlet of first gas-liquid separator connects with the heat exchanger
Connect.
In a preferred embodiment of the invention, the refrigerating circuit includes stage compressor, the first cooler, second
Gas-liquid separator, split-compressor and the second cooler, the stage compressor successively with first cooler and the second gas
Liquid/gas separator is connected, the exhaust outlet of second gas-liquid separator successively with the split-compressor, the second cooler and heat exchange
Device is connected；The heat exchanger sidepiece backflows pipeline provided with refrigerant, the refrigerant backflow pipeline by after heat exchanger with it is described
Stage compressor is connected
In a preferred embodiment of the invention, the refrigerant backflows pipeline provided with first throttle valve.
In a preferred embodiment of the invention, the liquid outlet of second gas-liquid separator by second throttle with
The heat exchanger connection.
In a preferred embodiment of the invention, the first gas-liquid separator bottom is provided with fluid reservoir.
By above-mentioned technical proposal, the beneficial effects of the invention are as follows：
The present invention connects the key device in liquefaction by spiral expanding flexible pipe so that gas-liquid mixture and refrigerant enter
During entering heat exchanger, certain revolution is had by corrugated hose, by dirt and other impurity by revolution and pipeline
Interior mixture is mixed；Further, by jittering device, effectively prevent the liquid deposition in pipeline the impurity in natural gas
It is attached in pipeline and causes pipe scale.
The present invention passes through spiral expanding flexible pipe, it is to avoid refrigerant is rested in pipeline, influences follow-up preparation and product
Purity.
The present invention is simple in construction, and pipeline cleaning is convenient, and transmission is simple.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
A kind of structural representation of the equipment for liquefied natural gas that Fig. 1 provides for the present invention；
The structural representation for the clamping device that Fig. 2 provides for the present invention；
The structural representation for the jittering device that Fig. 3 provides for the present invention；
Numeral and the corresponding component title represented by letter in figure：
1st, refrigerating circuit；101st, stage compressor；102nd, the first cooler；103rd, the second gas-liquid separator；104th, two grades
Compressor；105th, the second cooler；2nd, natural gas input channel；3rd, heat exchanger；4th, the first gas-liquid separator；5th, the first flexible pipe；
6th, the second flexible pipe；7th, clamping device；701st, dead ring；702nd, clamp；8th, jittering device；801st, connecting rod；802nd, cam；9th, rotate
Motor；10th, deacidifying device；11st, dehydration device；12nd, refrigerant backflows pipeline；13rd, first throttle valve；14th, second throttle；
15th, fluid reservoir.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Embodiment 1
Referring to the drawings shown in 1, a kind of equipment for liquefied natural gas that the present invention is provided, including refrigerating circuit 1, natural gas are defeated
Enter pipeline 2, the gas-liquid separator 4 of heat exchanger 3 and first, the refrigerating circuit 1 is connected by the first flexible pipe 5 with heat exchanger 3, naturally
Gas input channel 2 is connected with heat exchanger 3, and heat exchanger 3 is also connected by the second flexible pipe 6 with the first gas-liquid separator 4；
In use, natural gas enters by natural gas input channel 2, refrigerant enters heat exchanger by refrigerant loop 1
3, natural gas is after heat exchanger 3, due to the change of temperature, and gas-liquid conversion, most gaseous state can occur for gaseous natural gas
Natural gas reaches critical-temperature, becomes liquid, and the gas-liquid natural gas of mixing then is carried out into gas-liquid into the first gas-liquid separator 4
Separation, and then the natural gas after being liquefied.
Clamping device 7 is equipped with the first flexible pipe 5 and the second flexible pipe 6, each clamping device 7 is connected to drive institute
State the jittering device 8 of the first flexible pipe 5 and the shake of the second flexible pipe 6；
Further, the above-mentioned flexible pipe 6 of first flexible pipe 5 and second is spiral expanding flexible pipe.
Because refrigerant passes through in refrigerating circuit, some refrigerant can rest on the pipe that refrigerating circuit is connected with heat exchanger 3
On road, after the first task, follow-up refrigerant also may proceed to stop, and be made troubles to pipeline cleaning, meanwhile, it can also bring pipe
Dirt.Further, due to the ceaselessly circularly cooling of refrigerant, it is possible to the refrigerant of different temperatures can be regard as same temperature
Refrigerant bring heat exchanger into, influence liquefaction effect, or even influence product purity.
And when passing through the gas and liquid mixture of heat exchanger into the first gas-liquid separator 4, equally also occur in pipeline above-mentioned
Problem, the activity of clamping device 7 is driven by the jittering device 8 of the present invention, so can with and ensure that each flexible pipe is movable, and
It is not static, can not only avoids having liquid or impurity dirt in pipeline, moreover it is possible to by the impurity before being deposited in pipeline
Or pipe scale is shaken and then discharged.
Embodiment 2
As the further improvement of embodiment 1, referring to the drawings shown in 1 and 2, it is open annular that clamping device 7 includes one
Dead ring 701, two end points of the dead ring 701 intersect extension at cross-point and form clamp 702, wherein, the first flexible pipe 5
External diameter and the external diameter of the second flexible pipe 6 be all higher than the internal diameter of dead ring 701.
It is possible to further set raised in the inside of dead ring 701, the friction of flexible pipe and dead ring 701 is which increased
Power so that even if hose transition receives the drive activity of jittering device 8, is not easy to slide.
Clamping device in the present invention, simple in construction, installation procedure is simple, moreover it is possible to protect flexible pipe to be unlikely to deform.Such as may be used
Directly to form clamping device 7 by soft iron silk or steel wire.
In further improvement of this embodiment, two end point bent upwards of clamp 702 form the end of circle.Pass through
Rounded ends are set, not only facilitate the use of staff, it is to avoid opening scratches staff, and facilitates itself and jittering device
8 connection.
Embodiment 3
Referring to the drawings shown in 3, the present embodiment is as the further improvement and expansion of above-mentioned 2 embodiments, and jittering device 8 is
Crank mechanism, the crank mechanism includes connecting rod 801 and cam 802, is provided for installing the connecting rod 801 on cam 802
Connecting hole, wherein, clamping device 7 is connected with connecting rod 801, be connected with cam 802 with moving cam 802 rotate electric rotating machine
9。
With reference to embodiment 2, a connector can be increased in one end of connecting rod 801, such as can be by connecting rod 801
Hole on connecting rod 801, is then connected, then passes through electric rotating machine 9 by punching by soft iron silk etc. with the circle of the end of clamp 702
Band moving cam 802 is rotated, and then connecting rod 801 is rotated, and has been further driven to the motion of dead ring 701.
By above-mentioned motion, the problem of solving dirt deposition in pipeline facilitates pipeline cleaning and ensure that whole
During product purity.
Embodiment 4
In the present embodiment, it is also associated with natural gas input channel 2 for the de- of natural gas depickling processing and dewater treatment
Sour device 10 and dehydration device 11.
Further, the exhaust outlet of the first gas-liquid separator 4 is connected with the heat exchanger 3., can be with by such connection
So that the gas of the first gas-liquid separator 4 discharge exchanges heat cooling again into heat exchanger 3, then enter by the choke valve of setting
Enter follow-up process.
Specifically, refrigerating circuit 1 includes stage compressor 101, the first cooler 102, the second gas-liquid separator 103, two
The level cooler 105 of compressor 104 and second, wherein, stage compressor 101 divides with the first cooler 102 and the second gas-liquid successively
Connected from device 103, the exhaust outlet of the second gas-liquid separator 103 successively with split-compressor 104, the second cooler 105 and heat exchange
Device 3 is connected；
Further, the sidepiece of heat exchanger 3 backflows pipeline 12 provided with refrigerant, and the refrigerant pipeline 12 that backflows passes through heat exchange
It is connected after device 3 with stage compressor 101.
Above-mentioned connected mode, realizes the whole circuit cycle of refrigerant, convenient continuously production, and safe and reliable.
Further, backflowed in refrigerant and first throttle valve 13 is provided with pipeline 12.Main purpose is to facilitate hybrid refrigeration
The circulation again of machine.
Further, the liquid outlet of the second gas-liquid separator 103 is connected by second throttle 14 with the heat exchanger 3.
Further, fluid reservoir 15 of the bottom of the first gas-liquid separator 4 provided with liquid after convenient storage separation.
In the present embodiment, after mix refrigerant compresses through stage compressor 101, cooled down by the first cooler 102 laggard
Enter the second gas-liquid separator 103, the gas that the second gas-liquid separator 103 is separated after the compression of split-compressor 104, then
Feeding heat exchanger 3 is exchanged heat after being cooled down through the second cooler 105, and sequentially entering refrigerant after being throttled through first throttle valve 13 returns
Flow tube road 12 and heat exchanger 3, the refrigerant for the return of pipeline 12 of then being backflowed in heat exchanger 3 with refrigerant are mixed, and are gone out after mixing
Heat exchanger 3 enters stage compressor 101, completes the mixing of hybrid refrigeration machine.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (10)
1. a kind of equipment of liquefied natural gas, it is characterised in that：Including refrigerating circuit, natural gas input channel, heat exchanger and
One gas-liquid separator, the refrigerating circuit is connected by the first flexible pipe with the heat exchanger, the natural gas input channel and institute
Heat exchanger connection is stated, the heat exchanger is connected by the second flexible pipe with first gas-liquid separator；
Clamping device is equipped with first flexible pipe and the second flexible pipe, it is described that each clamping device is connected to drive
First flexible pipe and the jittering device of the second flexible pipe shake；
First flexible pipe and the second flexible pipe are spiral expanding flexible pipe.
2. a kind of equipment of liquefied natural gas according to claim 1, it is characterised in that：The clamping device is opened including one
The dead ring of formula annular is put, two end points of the dead ring intersect extension at cross-point and form clamp, first flexible pipe
External diameter and the external diameter of the second flexible pipe be all higher than the internal diameter of the dead ring.
3. a kind of equipment of liquefied natural gas according to claim 2, it is characterised in that：Two end points of the clamp to
On be bent to form circle end.
4. a kind of equipment of liquefied natural gas according to claim 1, it is characterised in that：The jittering device is crank machine
Structure, the crank mechanism includes connecting rod and cam, and the cam is provided with the connecting hole for being used for installing the connecting rod, the clamping
Device is connected with the connecting rod, and the cam is connected with the electric rotating machine for driving cam rotation.
5. a kind of equipment of liquefied natural gas according to claim 1, it is characterised in that：On the natural gas input channel
It is also associated with deacidifying device and dehydration device.
6. a kind of equipment of liquefied natural gas according to claim 1, it is characterised in that：First gas-liquid separator
Exhaust outlet is connected with the heat exchanger.
7. a kind of equipment of liquefied natural gas according to claim 1, it is characterised in that：The refrigerating circuit includes one-level
Compressor, the first cooler, the second gas-liquid separator, split-compressor and the second cooler, the stage compressor successively with
First cooler and the second gas-liquid separator series connection, the exhaust outlet of second gas-liquid separator is pressed with described two grades successively
Contracting machine, the second cooler and heat exchanger connection；The heat exchanger sidepiece backflows pipeline, the refrigerant return tube provided with refrigerant
Road after heat exchanger with the stage compressor by being connected.
8. a kind of equipment of liquefied natural gas according to claim 7, it is characterised in that：The refrigerant backflows on pipeline
Provided with first throttle valve.
9. a kind of equipment of liquefied natural gas according to claim 7, it is characterised in that：Second gas-liquid separator
Liquid outlet is connected by second throttle with the heat exchanger.
10. according to a kind of equipment of any described liquefied natural gas of claim 1-9, it is characterised in that：First gas-liquid
Separator bottom is provided with fluid reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710161605.2A CN106949707A (en) | 2017-03-17 | 2017-03-17 | A kind of equipment of liquefied natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710161605.2A CN106949707A (en) | 2017-03-17 | 2017-03-17 | A kind of equipment of liquefied natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106949707A true CN106949707A (en) | 2017-07-14 |
Family
ID=59472618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710161605.2A Withdrawn CN106949707A (en) | 2017-03-17 | 2017-03-17 | A kind of equipment of liquefied natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106949707A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2106692A (en) * | 1991-10-16 | 1993-04-29 | Automatic Springs Pty Ltd | Clamp |
| CN1791762A (en) * | 2003-03-18 | 2006-06-21 | 帝国大学改革有限公司 | Tubing and piping for multiphase flow |
| CN102115683A (en) * | 2009-12-30 | 2011-07-06 | 中国科学院理化技术研究所 | Method for producing liquefied natural gas |
| CN204164554U (en) * | 2014-08-25 | 2015-02-18 | 徐工集团工程机械股份有限公司 | The locking throat hoop of flexible pipe |
| CN205837940U (en) * | 2016-05-06 | 2016-12-28 | 大唐淮南洛河发电厂 | A kind of anti-blocking rapping apparatus of coal conveyer belt coal spout |
| CN206695509U (en) * | 2017-03-17 | 2017-12-01 | 国能信通（延川）能源技术有限公司 | A kind of equipment of liquefied natural gas |
-
2017
- 2017-03-17 CN CN201710161605.2A patent/CN106949707A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2106692A (en) * | 1991-10-16 | 1993-04-29 | Automatic Springs Pty Ltd | Clamp |
| CN1791762A (en) * | 2003-03-18 | 2006-06-21 | 帝国大学改革有限公司 | Tubing and piping for multiphase flow |
| CN102115683A (en) * | 2009-12-30 | 2011-07-06 | 中国科学院理化技术研究所 | Method for producing liquefied natural gas |
| CN204164554U (en) * | 2014-08-25 | 2015-02-18 | 徐工集团工程机械股份有限公司 | The locking throat hoop of flexible pipe |
| CN205837940U (en) * | 2016-05-06 | 2016-12-28 | 大唐淮南洛河发电厂 | A kind of anti-blocking rapping apparatus of coal conveyer belt coal spout |
| CN206695509U (en) * | 2017-03-17 | 2017-12-01 | 国能信通（延川）能源技术有限公司 | A kind of equipment of liquefied natural gas |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 717200 4 office building, clean energy industrial park, Shanghai Yi village, Wen'an Yi Town, Yanchuan, Yanan, Shaanxi Applicant after: Yanan national energy Polytron Technologies Inc. Address before: 710000 office building of clean energy industrial park, Shanghai Yi village, Wen'an Yi Town, Yanchuan, Yanan, Shaanxi 4 Applicant before: GUONENG XINTONG (YANCHUAN) ENERGY TECHNOLOGY CO.,LTD. |
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| CB02 | Change of applicant information | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170714 |
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| WW01 | Invention patent application withdrawn after publication |